Answer:
2015 Net income is 5.2%
2016 Net income is 8.6%
2017 Net income is 14.0%
Step-by-step explanation:
Net income %=sales%-cost of goods sold %-expenses%
2015:
Sales is 100%
cost of goods sold is 66.1%
expenses is 28.7%
In 2015 net income %=100%-66.1%-28.7%=5.2%
2016:
Sales is 100%
cost of goods sold is 63.6%
expenses is 27.8%
In 2016 net income as % of sales=100%-63.6%-27.8%=8.6%
2017:
Sales is 100%
cost of goods sold is 62.1%
expenses is 24.8%
In 2017 net income as % of sales=100%-61.2%-24.8%=14.0%